Apparatus for grinding and sieving pulverizable substances.



No. 647,746. Paten td Apn-fl," I900.

n. J. GASSLEIN.

APPARATUS FOR GRINDlNG AND SIEVING P ULVERIZABLE SUBSTANCES.

(Application filed June 9, 1899.)

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WITNESSES C //v' VEN T0,?

A TTOHNEY I UNITE STATES PATENT OFFICE.

RICHARD J. GASSLEIN, OF PHILADELPHIA, PENNSYLVANIA.

APPARATUS FOR GRINDING AND SIEVING PULVERIZABLE SUBSTANCES.

SPECIFICATION forming part of Letters Patent No. 647,746, dated April17, 1900. Application filed J'une 9,1899. Serial No. 719,922. (Nomodel.)

To all 1071,0112, it may concern.-

Be it known that I, RICHARD J. GASSLEIN, a

citizen of the United States, residing in the. city of Philadelphia,State of Pennsylvania,

have invented certain new and useful Improvements in Apparatus forGrinding and SievingPulverizable Substances, of which the following is afull, clear, and exact descripject the provision of mechanism in aunitary structure actuated from asingle shaft and operating in unison oftime for consecutively grinding and sieving pulverizable substances, rsuch as drugs or solid chemicals,whereby the said operations may beconducted in immediate succession, the mill delivering the pulverizedsubstance to the sieving devices, obviating handling in'transit,avoiding the usual dust therefrom, and producing a great saving of laborand more uniform and cleanly product.

To these ends my invention consists of the combined mechanisms in oneunitary structure and in some of the details thereof, as hereinafterdescribed and claimed.

In the drawings illustrating my invention, Figure 1. is a perspectiveview of the apparatus, showing the connecting actuating mechanismbetween the grinding and sieving devices. Fig. 2 is a sectional viewthereof; Fig. 3, a plan view below, the line a b of Fig. 2, of thesieving mechanism and part of the mechanism which reciprocates the same;and

Fig. 4 is a detached sectional view of the interior sieve-frame.

The apparatus hereinafter described is especially adapted as a drug-millto grinding and sieving pulverizable drugs, and hence'is shown as ofcomparatively-small dimensions; but it is obvious that it may be of sizeto be driven by power and for other purposes than relation to the latteras to deliver the ground material at all times to the reciprocating sieving-frarne D, mounted within said housing.

The sieving apparatus consists of a housing 0, the essential features inwhich are that it shall be of a greater length than the reciprocatingsieve frame, to allow for the length of stroke desired, and that itshall have parallel side ribs 0 c, which provide a track-mounting forthe reciprocating sieve. Said sieve D consists of a suitable framecomposed of upright or inclined sides, the opposite long sides thereofbeing interiorly grooved or slotted, as

at d, at the'base to enable a wire or other sieving-plate d to be easilyslipped into and removed from such grooved or slotted frame, and therebyenable the apparatus to sieve coarse-or fine, as may be desired. To oneof the short sides of the sieving-frame D is attached a rod E, whichprojects through an aperture in the side of the housing 0 and isprovided on its end with a connecting-clutch F for the rocking lever H.

The connecting actuating devices consist of a cam faced plate P, mountedupon the -E is held in such manner as to adjust itself to the relativechange of position of said parts when the rod E is drawn in and outthereby. Alike forked end h is provided on the upper end of the rockinglever H to connect in like manner with a second and similar clutch onone end of a rod T, said rod being of greater diameter at its inner end,which latter part is mounted in a housing S, formed at the top of thestandard K, with a spiral spring surrounding part of said rod T withinthe housing, so as to maintain said part-s normally in the relativeposition shown in Fig. 1. The other or free end of said rod T isprovided with a wheel 3, journaled in its bifurcated end, said wheelbearing against the cam-face of the cam-wheel P. The housing for thesieving device may be closed or open at base and may be provided with adrawer, as shown. The operation of the device is as follows l Thesubstance to be pulverized and sieved being delivered to the hopper inthe grinding mill motion is imparted to the grinding devices through thefly-wheel A or in any other suitable way and the material grounddelivered, through the discharge-outlets A and A directly to thereciprocatingsieving-frame in the housing 0. Such motion being imparted-to the main shaft, .upon which the grinding devices are mounted and bywhich they are actuated, said rotary motion is thereby imparted to thecam-faced wheel P, and through the same to the little wheel s, journaled in the bifurcated end of the spring-controlled-rod S, which inturn imparts a swinging motion to V :therocking lever H, thelower end ofwhich being connected with the sliding vrod E, se-

' cured to the sieving-frame, said frame-is therereceiving-receptacle. i1

.Iclaim as new,and desire to secure by Letters by reciprocated on thetrack co in the housing'O, said reciprocation being necessarily inIunison of time with the rotary movement of the grindingshaft. v ployetlin grindingmills for adjusting the grinding-faces to grind fine orcoarsebeing- .employed, the sievin'g frame may be adjusted in the same way bysliding out the sieving v3 The cam devices eminesh d, as shown inFig. 4,and inserting a' finer or coarser mesh, as may be desired, the.

groundandsieved material beingfinallyde-v -1ivered into the drawer F orother suitable;

Having thus'described in y invention what Patent, is-"-' 1. A machinefor consecutively grinding vices delivering the ground product directlyto the sieving device, the main shaft of the machine operating thegrinding devices, a cam-faced wheel actuated by said shaft, a slidingrod normally held in contact with said wheel and adapted to bereciprocated thereby, a sieve receiving the ground product, andconnections between said sliding rod and said sieve fortransmittin g thereciprocatory move ment of the former to said sieve; substantially asdescribed. 7 f

2. In combinationwith reciprocating sieving devices, of a frame orhousing over the same, a grinding-mi-llmounted on said housing andhaving a discharge-outlet delivering the ground material to thesieving-frame, a main shaft carrying and actuating the grind ingdevices, a cam-faced wheel mounted on and revoluble with said grindingshaft, a spring-controlled reciprocating rod suitably mounted in astandard on said housing, one end of saidrod carrying a wheel, a rockingfleverhavi'ng forked ends, one thereof "connected with and actuated bysaid spring-controlled rod, andthe'other. thereof connected "with andactuati-n g to reciprocate a sliding -fixe'd my signature this 6th dayof June, A. D.

v RICHARD J. GASSLEIN. r-witness'esz I I" a I WALTER O; PUSEY, I H. '1.-Fnn'rom

